One of the most important characteristics of single access link scheduling of TDRSS lies in that there was time windows constraint between tracking and data relay satellite(TDRS) and user spacecraft.

• 中继卫星单址链路调度问题的重要特点在于,中继卫星与用户航天器之间并非时时可见,因此通信任务存在可见时间窗口约束。